Takumi Nonaka
40Patents
5h-index
26Co-inventors
69Inventor score
Filing activity: Mar 29, 2000 → Aug 7, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6681299B1 | Cache-tag control method in information processing apparatus having cache, with error checking mechanism in cache tag, and information processing apparatus using this control method | Physics | 12 | Expired |
| US6880812B2 | Carburetor | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6662767B1 | Scavenging air/fuel-air mixture control device for a stratified scavenging two-cycle engine | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6827338B2 | Scavenging air/fuel-air mixture control device for a stratified scavenging two-cycle engine | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7168423B2 | Gas sensor units for engines | Physics | 5 | Expired |
| US6631889B2 | Diaphragm-type carburetor | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6845972B2 | Fuel system of carburetor | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6702262B2 | Fuel system of carburetor | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6843469B1 | Scavenging air/fuel-air mixture control device for a stratified scavenging two-cycle engine | Emerging Cross-Sectional Technologies | 4 | Expired |
| US9840990B2 | Fuel injection device | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US10495029B2 | Carburetor with single diaphragm for supplying and metering fuel | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9188066B2 | Speed reduction method for hand-carried engine-driven working machine | Emerging Cross-Sectional Technologies | 2 | Active |
| US6496903B1 | Cache memory device | Physics | 2 | Expired |
| US9115670B2 | Fuel control method for hand-carried engine-driven working machine | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US10495017B2 | Portable working machine including engine with carburetor and fuel supply control method thereof | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9394870B2 | Fuel injection device | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9938932B2 | Carburetor with single diaphragm for supplying and metering fuel | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9062621B2 | Fuel control method for handheld engine operating machine | Emerging Cross-Sectional Technologies | 1 | Active |
| US7278629B2 | Carburetor | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US9422890B2 | Rotary carburetor | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10273917B2 | Fuel injection device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8752528B2 | Fuel injection device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US7144230B2 | Pulse fuel pump for a diaphragm carburetor | Mechanical Engineering; Lighting; Heating | 0 | Expired |
| US8899202B2 | Fuel injection device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10145346B2 | Electromagnetic fuel valve | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.